In general: you should always be transparent about your use of AI tools. Since AI tools cannot be considered an author (established by Thaler v. Perlmutter on August 18, 2023), they should not be considered a source. Instead, they are generally considered a collaborator.
Therefore, you should cite AI tools when they are used to:
For most AI tools, you should collect the following elements for citation:
Adapted from CC BY-NC MIT Libraries
Before using AI tools in an official capacity, you should know the policy of the school, class, or publication for which you are writing.